Xinje XD Series - Page 242

241
XD-NES-ED
6. Above extension BD port (COM4, COM5)
The above extension port can connect BD card which contains RS232 mode (XD-NS-BD),
RS485 mode (XD-NE-BD) and optical fiber mode (XD-NO-BD).
XD series 24/32 I/O PLC can extend one BD card, XD series 48/60 I/O PLC can extend 2 BD
cards, XD series 16 I/O PLC cannot extend BD card.
(1) XD-NS-BD
(2) XD-NE-BD
Each part name is shown as below:
Name
Function
Power LED
The light is ON when the ED module
power on
Communication
LED
The light is ON when ED module
communication is normal
Wiring terminal
A
RS485+
B
RS485-
SG
Ground
FG
Connect to ground terminal
-
Empty
TX
RS232 send
RX
RS232 receive
SG
Ground
PWR
COM
Power LED
Communication
LED
Wiring terminal
Each part name is shown as below:
Name
Function
Communication
LED
Not support this function
Wiring
terminal
TX
Signal send
RX
Signal receive
GND
Ground
●
Empty
Each part name is shown as below:
Name
Function
Communication
LED
The light is flashing when the BD
card communication is successful
Wiring
terminal
A
485+
B
485-
S
Signal ground
●
Empty
Terminal resistor
switch
To choose whether to use terminal
resistor (120Ω)
COM
Wiring terminal
Communication
LED
COM
A
B
COM
Communication
LED
Wiring terminal
Terminal
resistor switch
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